Ron's View Of The Universe
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NGC 4559 (also known as Caldwell 36) is an intermediate spiral galaxy with a weak inner ring structure in the constellation Coma Berenices. Distance estimates for NGC 4559 range from about 28 million light-years to 31 million light-years, averaging about 29 million light-years. It was discovered on 11 April 1785 by German-British astronomer William Herschel. NGC 4559 is a member of the Coma I Group. Supernova: One supernova has been recorded in NGC 4559: SN 1941A (Type II-L, mag. 13.2) was discovered by Rebecca Jones on 24 February 1941, and after checking previous photographs of the galaxy, it was determined that the supernova was visible starting 5 February 1941. Luminous Blue Variable: NGC 4559 is home to the luminous blue variable AT 2016blu, which experiences repeated supernova-like outbursts. First observed in January 2012, it burst out again in 2014, 2016, 2017, 2018, 2019, 2020, 2021, 2022, and 2024.
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